Jar-closure.



Y PATENTBD JULY 21, 1903. s. T. cRIssY. JAR oLosURE.

A PPLIOATION I'IVLED SEPT. 10I 1902.

N0 MODEL.

m: mamsv PETERS m, mman-mm msnumren. um

No. 734,04*?.l

UNITED STATES Patented uly 2*'1., i903.

PATENT OFFICE.

SAMUEL T. CRISSY, OF HCKENSACK, NET JERSEY.

SPECIFICATION forming part of Letters Patent No. 734,047, dated uly 21, 1903. Application flied september 10,1902. rserai No. 122.788. oro model.)

To all whom, t may concern:

Be it known that I, SAMUEL T. CRIsSY, a citizen of the United States, residing at Hackensack, county of Bergen, and State of New Jersey, have invented certain new and useful Improvements in Jar-Closures, of which the following is a specification, reference being had to the drawings accompanying and forming part of the same.v

My invention pertains to means for securinga perfectly liquid and air tight closure for jars, particularly those having a large opening or mouth, such as water-coolers and the like.

To thatend it consists, essentially, of adisklike body carrying a gasket of rubber or other yielding material which is intended to be seated against the inside of the rim or edge of the vessel and means for expanding or pressing such gasket firmly against the rim.

I am aware that numerous attempts have been made to produce a tight closure by using an expansible gasket, and in some instances these have been found to a certain extent practicable; but my device embodies features of novelty and combinations of parts which I believe possess considerable advantages over the prior articles, especially when used onvessels of large size, as before mentioned. In fact, I do not know that the prior articles have been found satisfactory when used with such vessels.

Referring to the drawings, Figure 1 vshows a Vertical section of my closure. Fig. 2 is a top plan view of the expander. Fig. 3 is a section of a modification, and Fig. et is a section showing another form of gasket.

Throughout the drawings, l is a jar having, it will be noted, no flange or other projections at its edge except, perhaps, a slight bead as a finish 2 is a disk-like cover, usually ornamental in form and appearance and preferably of brass or other metal. The cover has near its edge a depending fiange 3, While the edge itself may be turned down over the rim of the vessel, as shown. In the center of the cover is a neck 4 of a size to furnish a suitable bearing for a bolt 5, screw-,threaded at its lower end and carrying a rigidly-fastened collar 6, so that the bolt may loe rotated, but not vertically displaced.

corrugated, as al 8, and having stiffening ribs or braces 9. At the center of the expander is a stiff plate l0, firmly fastened in any convenient way-,as by solder, to give the part ladditional rigidity and Lo aid in holding in place the block or neck l1, which is screwthreaded to receive the bolt 5. Near the edge is a vertical or upstanding flange 12, tting either within the iiange 3 of the cover, as Shown, or without. The lower end of the bolt 5 may be provided with a` cap or collar to give an ornamental finish and to prevent accidental withdrawal.

Around the flanges 3 Aand l2, abutting against the edges of the cover and the expander, is a ring 1'3, constituting a gasket, which may be of rubber orv other yielding material. It should be somewhat wider than the iianges, as will be readily understood.

The operation of my device will be clearly seen from the foregoing. With the parts assembled as shown in Fig. l, the closure is lplaced on the vessel and the bolt then screwed into the block or neck l1 hy means of a key inserted in the head 14. The expander and cover are thus brought together, with the result that the jacket is compressed, and consequently bulged against the wall of the vessel 1. The pressure of the gasket on the jar-Wall, or, in other words, the tightness of the joint at that point, is determined solely by the user, who may expand the gasket to any desired degree, as is easily understood.

The form of closure just described is of course one embodiment ofvmy invention, though the one that I regard the most convenient. The device is capable .of many modifications-as, for example, those illustrated in Figs. 3 and 4. In Fig. 3 the screwthreaded part of the bolt 5 is its upper end, the lower end being rotatably held in the eX- pander by the devices shown. Thesquare keyhole in the bolt-head may be dispensed with and a suitable handle used; but I prefer the construction shown for the reason that it eifectually prevents accidental loosening of the gasket, which might happen if a handle with projecting parts were employed. The flush bolt-head of Figs. l and 3 also ren- IOO ders the jar and closure more convenient for crating. In Fig. 4 I show a tubular ring used as the gasket-a form which in some cases is more convenient than a flat strip. Also for the tube may be substituted a solid ring of circular cross-section or having a polygonal section of substantially equal sides. I may mention in addition that for a number of uses-as, for example, when the jar is used to contain corrosive liquids-the expander may with advantage be made of glass, so that no material which is attacked by the contents of the vessel will be exposed thereto.

While I have shown and described but one or two forms of my invention, it is of course understood that the same is capable of many embodiments, and I therefore do not consider myself limited to those shown; but

\Vhat I claim is- 1. Ajar-closurecomprisingin combination, an upper disk-like member having a dependingl flange near its edge, a lower disklike member having an upstanding flange coacting with the first-mentioned flange, a gasket outside the flanges, and means for drawing the members together to expand the gasket against the wall of the jar or vessel, as set forth.

2. A jar-closure comprisingin combination, an upper disk-like member having a depending flange near its edge, a lower disk-like member having an upstanding flange adapted to fit inside the first-mentioned flange to prevent lateral displacement of the disk-like members relative to each other, a gasket outside the flanges, and means for drawing the members together to expand the gasket against the Wall of the jar or vessel, as set forth.

3. Ajar-closure c'omprisingin combination, an upper disk-like member having a depending flange near its edge, a lower disk-like member having an upstanding flange adapted to fit within the first-mentioned flange to prevent lateral displacement of the disk-like members relative to each other, a flexible gasket outside the flanges bearing in the angles formed by each disk-like member and its flange, and a screw-bolt for drawing the members together to expand the gasket against the wall of the jar or vessel,-as set forth.

SAMUEL T. CRISSY.

Witnesses:

S. S. DUNHAM, M. LAWSON DYER. 

